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SIT1602BI-22-33E-50.000000

SIT1602BI-22-33E-50.000000

SiTime
50 MHz XO (Standard) HCMOS, LVCMOS Oscillator 3.3V Enable/Disable 4-SMD, No Lead
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Overview

The SIT1602BI-22-33E-50.000000 is a 50 MHz MEMS-based oscillator from SiTime's SiT1602 series, designed for industrial-grade timing applications. It provides a stable LVCMOS/HCMOS output from a 3.3V supply in a compact 3.20mm x 2.50mm surface-mount package. This component features an output enable/disable function to assist with system power management and thermal efficiency.

Why Choose This Part

This MEMS oscillator offers superior reliability and vibration resistance compared to traditional quartz crystals, with a mean time between failure (MTBF) reaching up to 1 billion hours. It maintains a tight frequency stability of +/-25ppm across the industrial temperature range and features a low-profile 0.75mm package height suitable for space-constrained PCBs.

Applications

Microcontroller Clocking
Provides a high-speed external clock source for MCUs requiring a precise 50 MHz reference for internal PLLs.
Ethernet PHY Reference
Suitable for driving RMII or MII interfaces in networking hardware that demands low-jitter 50 MHz timing.
Industrial Automation
Reliable operation in harsh environments across a wide temperature range from -40C to +85C.
FPGA Logic Fabric
Acts as a primary or auxiliary clock source for synchronous logic in FPGA and CPLD designs.

Key Specifications

Type XO (Standard)
Output HCMOS, LVCMOS
Function Enable/Disable
Frequency 50 MHz
Mounting Type Surface Mount
Base Resonator MEMS
Package / Case 4-SMD, No Lead
Size / Dimension 0.126" L x 0.098" W (3.20mm x 2.50mm)
Voltage - Supply 3.3V
Frequency Stability +/-25ppm
Height - Seated (Max) 0.031" (0.80mm)
Operating Temperature -40degC ~ 85degC
Current - Supply (Max) 4.5mA
Supplier Device Package 4-PQFN (3.2x2.5)

Getting Started

To integrate this part, provide a stable 3.3V supply and place a 0.1uF bypass capacitor as close to the VDD pin as possible. The Output Enable (OE) pin allows the clock to be gated by a GPIO to reduce system power consumption during sleep modes. Standard PCB layout practices for high-speed CMOS signals should be followed to minimize EMI and signal reflection.